Hydrogen Embrittlement Relief (Baking) of Steel Parts
|Publication Date:||1 October 2018|
This specification covers the requirements for embrittlement relief (baking) of heat treated steel parts to remove hydrogen infused during plating and certain other chemical processing such as stripping, chemical milling, pickling, and etching.
This specification is applicable, but not limited to, the following types of parts:
Carbon, low alloy, and martensitic stainless steel parts heat treated to a minimum strength of 180 ksi (1241 MPa), or a minimum hardness of 40 HRC or equivalent.
Threaded fasteners made from carbon, low alloy, or martensitic stainless steels heat treated to a minimum strength of 150 ksi (1034 MPa), or a minimum hardness of 34 HRC or equivalent.
Parts made from high strength precipitation hardening stainless steels other than A-286 (see Table 1 for specific tempers).
Steel parts which have been case hardened (carburized, nitrided, nitrocarburized, or carbonitrided).
Other parts that specify AMS2759/9.
The provisions of this specification revision shall become effective 90 days after publication.